SMTL ID : 1ecy.1

PROTEASE INHIBITOR ECOTIN

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.19 Å

Oligo State

homo-dimer

Ligands

26 x GLC- GLC: alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranose(Non-covalent)(Non-functional Binders)

GLC-GLC.1: 2 residues within 4Å: Chain A: K.58, D.75 No protein-ligand interaction detected (PLIP) GLC-GLC.2: 1 residues within 4Å: Chain A: A.86 No protein-ligand interaction detected (PLIP) GLC-GLC.3: 5 residues within 4Å: Chain A: H.53, S.79, P.80, V.81, S.82 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:P.80 GLC-GLC.4: 5 residues within 4Å: Chain A: L.52 Chain B: R.108 Ligands: GLC-GLC.7, GLC-GLC.7, GLC-GLC.13 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:R.108, B:R.108 GLC-GLC.5: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) GLC-GLC.6: 5 residues within 4Å: Chain A: A.1, Q.26, T.28 Chain B: K.135, D.137 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:K.135, B:D.137, A:A.1, A:A.1 GLC-GLC.7: 8 residues within 4Å: Chain B: N.61, D.70, Y.72, D.103, A.104, L.107, R.108 Ligands: GLC-GLC.4 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Y.72, B:R.108 GLC-GLC.8: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) GLC-GLC.9: 3 residues within 4Å: Ligands: GLC-GLC.12, GLC-GLC.12, GLC.16 No protein-ligand interaction detected (PLIP) GLC-GLC.10: 6 residues within 4Å: Chain A: P.6, L.7, E.8, Q.15, R.22 Chain B: R.142 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:L.7, A:Q.15, A:Q.15, A:R.22 GLC-GLC.11: 2 residues within 4Å: Chain A: G.90 Ligands: GLC.17 No protein-ligand interaction detected (PLIP) GLC-GLC.12: 3 residues within 4Å: Chain A: E.31 Ligands: GLC-GLC.9, GLC.15 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:E.31 GLC-GLC.13: 7 residues within 4Å: Chain A: E.39, L.41, W.130 Chain B: S.34, K.37, R.108 Ligands: GLC-GLC.4 5 PLIP interactions: 4 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:S.34, B:K.37, B:K.37, A:E.39 Salt bridges: B:K.37 GLC-GLC.19: 2 residues within 4Å: Chain B: K.58, D.75 No protein-ligand interaction detected (PLIP) GLC-GLC.20: 1 residues within 4Å: Chain B: A.86 No protein-ligand interaction detected (PLIP) GLC-GLC.21: 5 residues within 4Å: Chain B: H.53, S.79, P.80, V.81, S.82 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:P.80 GLC-GLC.22: 5 residues within 4Å: Chain A: R.108 Chain B: L.52 Ligands: GLC-GLC.25, GLC-GLC.25, GLC-GLC.31 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.108, A:R.108 GLC-GLC.23: 0 residues within 4Å: (No contacts) 1 PLIP interactions: 1 interactions with chain B Water bridges: B:D.89 GLC-GLC.24: 5 residues within 4Å: Chain A: K.135, D.137 Chain B: A.1, Q.26, T.28 5 PLIP interactions: 3 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:K.135, A:D.137, A:D.137, B:A.1, B:A.1 GLC-GLC.25: 8 residues within 4Å: Chain A: N.61, D.70, Y.72, D.103, A.104, L.107, R.108 Ligands: GLC-GLC.22 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Y.72, A:R.108 GLC-GLC.26: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) GLC-GLC.27: 3 residues within 4Å: Ligands: GLC-GLC.30, GLC-GLC.30, GLC.34 No protein-ligand interaction detected (PLIP) GLC-GLC.28: 6 residues within 4Å: Chain A: R.142 Chain B: P.6, L.7, E.8, Q.15, R.22 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:L.7, B:E.8, B:Q.15, B:Q.15, B:R.22 GLC-GLC.29: 2 residues within 4Å: Chain B: G.90 Ligands: GLC.35 No protein-ligand interaction detected (PLIP) GLC-GLC.30: 3 residues within 4Å: Chain B: E.31 Ligands: GLC-GLC.27, GLC.33 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:E.31 GLC-GLC.31: 7 residues within 4Å: Chain A: S.34, K.37, R.108 Chain B: E.39, L.41, W.130 Ligands: GLC-GLC.22 5 PLIP interactions: 4 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:S.34, A:K.37, A:K.37, B:E.39 Salt bridges: A:K.37

8 x GLC: alpha-D-glucopyranose(Non-functional Binders)(Non-covalent)

GLC.14: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) GLC.15: 3 residues within 4Å: Chain A: E.31 Ligands: GLC-GLC.12, GLC.16 No protein-ligand interaction detected (PLIP) GLC.16: 4 residues within 4Å: Chain A: E.31, D.32 Ligands: GLC-GLC.9, GLC.15 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:E.31, A:E.31, A:D.32 GLC.17: 2 residues within 4Å: Chain A: D.89 Ligands: GLC-GLC.11 No protein-ligand interaction detected (PLIP) GLC.32: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) GLC.33: 3 residues within 4Å: Chain B: E.31 Ligands: GLC-GLC.30, GLC.34 No protein-ligand interaction detected (PLIP) GLC.34: 4 residues within 4Å: Chain B: E.31, D.32 Ligands: GLC-GLC.27, GLC.33 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:E.31, B:D.32 GLC.35: 2 residues within 4Å: Chain B: D.89 Ligands: GLC-GLC.29 No protein-ligand interaction detected (PLIP)

2 x BGC: beta-D-glucopyranose(Non-functional Binders)

BGC.18: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) BGC.36: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Shin, D.H. et al., Crystal structure analyses of uncomplexed ecotin in two crystal forms: implications for its function and stability. Protein Sci. (1996)

Release Date

1997-02-12

Peptides

ECOTIN: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

ECOTIN

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